Does size matter?

[Imp]

Set the game up the other way ages back did a German vs Russia Kursk type thing on 120x200 map playing up it through several lines of defence, 3 lines of trenches if I remember. Need some time mind think it lasted over 70 turns & Russia did not commit its good armour till very late & the defences had taken there toll. Saved most of the rockets for the counter offensive to which takes a lot of self control.